Use ADO. NET Entity Framework in N-Tier or multi-Tier applications
Source: Internet
Author: User
ADO. NET Entity Framework is a newly added function of. Net Framework v3.5 SP1. This article discusses how to use Entity Framework in N-Tier applications. As shown in, Data Access Layer (DAL), BLL (Business Logic Layer), and BFLL (Business Fa C ade Logic Layer) are available) business appearance Layer, WCF Service Layer, and Presentation Layer. Entity Framework is used as the DAL layer on top of Data Sources. EF Entities serves as the data transmission object DTO transmits data between layers.
Summarized as follows:Entity Framework and LINQ to Entities act as the DAL layer. Use the remote access technology of WCF to provide external services. Client Applications can use multiple. NET technologies, such as WPF, WinForms, and even Silverlight. Original English:
Http://blogs.msdn.com/cesardelatorre/archive/2008/09/04/updating-data-using-entity-framework-in-n-tier-and-n-layer-applications-short-lived-ef-contexts.aspx
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